Jawab:
Vektor
AB = b-a
CB = b - c
Penjelasan dengan langkah-langkah:
AB : CB = 5 : 3
3 (AB) = 5 (CB)
3 (b-a) = 5 (b - c)
3b - 3a = 5b - 5c
5c - 3a= 5b - 3b
5c - 3a = 2b
5c = 3a+ 2b
c = 1/5 { 3a + 2 b}
C= 1/5 [ 3 (2, - 1 , 3 ) + 2 (-5, 2, - 6) }
C= 1/5 [ (6, - 3, 9 ) + (- 10, 4 , - 12)}
C= 1/5 [ (6-10), (-3 + 4) , (9 -12)}
C= 1/5 ( -4, 1 , -3)
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Verified answer
Jawab:
Vektor
AB = b-a
CB = b - c
Penjelasan dengan langkah-langkah:
AB : CB = 5 : 3
3 (AB) = 5 (CB)
3 (b-a) = 5 (b - c)
3b - 3a = 5b - 5c
5c - 3a= 5b - 3b
5c - 3a = 2b
5c = 3a+ 2b
c = 1/5 { 3a + 2 b}
C= 1/5 [ 3 (2, - 1 , 3 ) + 2 (-5, 2, - 6) }
C= 1/5 [ (6, - 3, 9 ) + (- 10, 4 , - 12)}
C= 1/5 [ (6-10), (-3 + 4) , (9 -12)}
C= 1/5 ( -4, 1 , -3)